Dale Thomas Mortensen (February 2, 1939 – January 9, 2014) was an American economist, a professor at Northwestern University, and a winner of the Nobel Memorial Prize in Economic Sciences.

[2] Mortensen had been on the faculty of Northwestern University since 1965 and a professor of Managerial Economics and Decision Sciences at the Kellogg School of Management since 1980.

[3] He was the Niels Bohr Visiting Professor at the School of Economics and Management, Aarhus University, from 2006 to 2010.

He extended the insights from this work to study labor turnover and reallocation, research and development, and personal relationships.

Mortensen died of stage 4 lung cancer on January 9, 2014, at the age of 74, at his home in Wilmette.